330 (#426) ############################################ 1 WOOLLEN AND WORSTED SPINNING LIST XVI. ILLUSTRATING THE EFFECTS OF SPINDLE SPEED ON THE STRENGTH OF A YARN SLOW SPEED. (1833 r.p.m.) TESTS. FAST SPEED. (2800 r.p.m.) A Jaws B Jaws Close 18 in. apart A Jaws Close B Jaws 18 in. apart C.C. 1 2 C.C. 105 5:5 12-5 145 II 75 4 7:5 ” c.c. 20 20:5 20 18 19 20.5 22 22:5 25 26.5 19.5 18 18 175 20 20:5 20 20 19:5 2005 boob mo ang C.C. 22:5 155 28 26.5 27 26 20:5 17.5 16.5 17 19.5 23 205 24 22:5 21 21.5 21 175 16 7.5 II 705 9 9 Іо II 12 13 14 15 16 17 18 19 20 2 11:5 II.5 II.5 8.5 995 12.5 10 IO 5 IO 10 10-5 7.0 7:5 8.5 407.3 161.0 423:5 184.0 Average 20.3 8 21:1 97 . •3119 thread fibre strength (spinning efficiency). 8 Fast speed . 20:3 907 Slow speed. 21.1 -46 thread fibre strength (spinning efficiency). a measuremmore or less exact-of the relative spinning efficiencies of the fibres in yarns so compared. The following list is taken as a basis for the various graphs illustrated in Fig. 100. The following brief description of these graphs will prove ample. GRAPH I.-This illustrates the usual method of 330